package abs.dao;

import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.*;
import javax.swing.ImageIcon;

public class CImagen {

    public GraphicsConfiguration getDefaultConfiguration() {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        return gd.getDefaultConfiguration();
    }

    public BufferedImage toCompatibleImage(BufferedImage image, GraphicsConfiguration gc) {
        if (gc == null) {
            gc = getDefaultConfiguration();
        }
        int w = image.getWidth();
        int h = image.getHeight();
        int transparency = image.getColorModel().getTransparency();
        BufferedImage result = gc.createCompatibleImage(w, h, transparency);
        Graphics2D g2 = result.createGraphics();
        g2.drawRenderedImage(image, null);
        g2.dispose();
        return result;
    }

    public BufferedImage getScaledInstance(BufferedImage image, int width, int height, GraphicsConfiguration gc) {
        if (gc == null) {
            gc = getDefaultConfiguration();
        }
        int transparency = image.getColorModel().getTransparency();
        return copy(image, gc.createCompatibleImage(width, height, transparency));
    }

    private BufferedImage copy(BufferedImage source, BufferedImage target) {
        Graphics2D g2 = target.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        double scalex = (double) target.getWidth() / source.getWidth();
        double scaley = (double) target.getHeight() / source.getHeight();
        AffineTransform xform = AffineTransform.getScaleInstance(scalex, scaley);
        g2.drawRenderedImage(source, xform);
        g2.dispose();
        return target;
    }

   public BufferedImage toBufferedImage(Image image) {
        if (image instanceof BufferedImage) {
            return (BufferedImage) image;
        }

        // This code ensures that all the pixels in the image are loaded
        image = new ImageIcon(image).getImage();

        // Determine if the image has transparent pixels; for this method's
        // implementation, see Determining If an Image Has Transparent Pixels

        //boolean hasAlpha = hasAlpha(image);

        // Create a buffered image with a format that's compatible with the screen
        BufferedImage bimage = null;
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        try {
            // Determine the type of transparency of the new buffered image
            int transparency = Transparency.OPAQUE;
//            if (hasAlpha) {
//                transparency = Transparency.BITMASK;
//            }

            // Create the buffered image
            GraphicsDevice gs = ge.getDefaultScreenDevice();
            GraphicsConfiguration gc = gs.getDefaultConfiguration();
            bimage = gc.createCompatibleImage(
                    image.getWidth(null), image.getHeight(null), transparency);
        } catch (HeadlessException e) {
            // The system does not have a screen
        }

        if (bimage == null) {
            // Create a buffered image using the default color model
            int type = BufferedImage.TYPE_INT_RGB;
//            if (hasAlpha) {
//                type = BufferedImage.TYPE_INT_ARGB;
//            }
            bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
        }

        // Copy image to buffered image
        Graphics g = bimage.createGraphics();

        // Paint the image onto the buffered image
        g.drawImage(image, 0, 0, null);
        g.dispose();

        return bimage;
    }
}
